<template>
  <div class="login-container">
    <el-form
      ref="loginFormComp"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">Login Form</h3>
      </div>

      <el-form-item prop="tel">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="tel"
          v-model="loginForm.tel"
          placeholder="请输入手机号码"
          name="tel"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click.prevent="handleLogin"
      >Login</el-button>

      <div class="tips">
        <span style="margin-right:20px;">username: admin</span>
        <span>password: any</span>
      </div>
    </el-form>
  </div>
</template>

<script lang="ts">
// import { validUsername } from '@/utils/validate'
import type Form from 'element-plus/lib/el-form'
import { defineComponent, nextTick, ref, watch } from 'vue'
import { useRoute, useRouter } from 'vue-router'
import { useStore } from 'vuex'
import { RuleItem } from "async-validator"
import { GlobalDataPropsKey } from '@/store/index'


export default defineComponent({
  name: 'Login',
  setup() {
    const loginForm = ref({
      tel: '15818087802',
      password: '123456'
    })

    // const validateUsername: RuleItem["validator"] = (rule, value, callback) => {
    //   if (!validUsername(value)) {
    //     callback('Please enter the correct user name')
    //   } else {
    //     callback()
    //   }
    // }
    // const validatePassword: RuleItem["validator"] = (rule, value, callback) => {
    //   if (value.length < 6) {
    //     callback('The password can not be less than 6 digits')
    //   } else {
    //     callback()
    //   }
    // }
    const loginRules = ref<Rules>({
      tel: [{ required: true, trigger: 'blur' }],
      password: [{ required: true, trigger: 'blur'}]
    })

    interface Rules {
      [field: string]: RuleItem & { trigger?: string } | (RuleItem & { trigger?: string })[];
    }

    const loading = ref(false)
    const passwordType = ref('password')
    const redirect = ref('')

    const route = useRoute()
    const router = useRouter()
    watch(() => route.query.redirect, (val) => {
      redirect.value = val as string
    }, { immediate: true })

    const loginFormComp = ref<InstanceType<typeof Form> | null>(null)
    const store = useStore(GlobalDataPropsKey)
    function handleLogin() {

      loginFormComp.value?.validate(valid => {
        if (valid) {
          loading.value = true
          store.dispatch('user/login', loginForm.value).then(() => {
            router.push({ path: redirect.value || '/' })
            loading.value = false
          }).catch(() => {
            loading.value = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
    const password = ref<HTMLInputElement | null>(null)

    function showPwd() {
      if (passwordType.value === 'password') {
        passwordType.value = ''
      } else {
        passwordType.value = 'password'
      }
      nextTick(() => {
        password.value?.focus()
      })
    }

    return { loginRules, loginForm, loading, passwordType, showPwd, handleLogin, loginFormComp }

  }
})
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-plus css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
